Last night i tried the WILD method but i did it straight as i went to bed.
I lay there concentrating on my breath, after a long time my legs got heavy and i could hardly breath, trying to stay calm i told myself it was just my body testing to see if i was awake, i continued to have trouble breathing and at some points found myself almost gasping for air as if i was being suffocated.
That finally passed, then in my legs i felt a weird feeling, about 15 minutes later it was a agonising pain, my legs seem to feel as if they where being stretched and it was so painful i had to move.
After moving the pain left, but would my brain really use such a painful method to test if i was awake, because this pain was dreadful and it was in both of my legs.